Ploceus nigerrimus
Silhouette: Sheatherius · PhyloPic
In 3 days ~40% in a week ~70%
Vieillot's black weaver (Ploceus nigerrimus) is a species of bird in the family Ploceidae. It is found in southern Nigeria to Uganda, west Kenya, Angola and the Democratic Republic of the Congo. The common name is after the French ornithologist Louis Pierre Vieillot.
This species was formerly considered to be conspecific with chestnut-and-black weaver (Ploceus castaneofuscus). The species were split based on the striking differences in the colour of the plumage. Vieillot's black weaver - Species text in Weaver Watch. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kibale National Park | 🇺🇬 Uganda | |
| 2 | Odzala-Kokoua National Park | 🇨🇬 Republic of the Congo | |
| 3 | Semuliki National Park | 🇺🇬 Uganda | |
| 4 | Queen Elizabeth National Park | 🇺🇬 Uganda | |
| 5 | Virunga National Park | 🇨🇩 Democratic Republic of the Congo | |
| 6 | Bwindi Impenetrable National Park | 🇺🇬 Uganda | |
| 7 | Murchison Falls National Park | 🇺🇬 Uganda | |
| 8 | Lake Mburo National Park | 🇺🇬 Uganda |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yaoundé | 🇨🇲 Cameroon | |
| 2 | Kampala | 🇺🇬 Uganda | |
| 3 | Brazzaville | 🇨🇬 Republic of the Congo |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Bird Paradise | 🇸🇬 Singapore | |
| 2 | Rainforest Wild Asia | 🇸🇬 Singapore |
With luck
About 10% of wildlife watchers report a Vieillot's Weaver sighting in Virunga National Park on a given day, based on 62 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 68th most-seen of the 316 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
March to May
In those months about 30% of wildlife watchers report a Vieillot's Weaver in Virunga National Park on a given day, against under 5% in December, the lowest month. Those are among Virunga National Park's wettest months, with about 200 mm of rain a month against 15 mm in January.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Vieillot's Weaver sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 8
Of the 8 parks where we can rate Vieillot's Weaver sightings, Virunga National Park ranks 5th at about 10%. The best odds are in Kibale National Park (Uganda, about 50%), Odzala-Kokoua National Park (Republic of the Congo, about 30%) and Semuliki National Park (Uganda, about 20%).
Same genus: Ploceus
The closest relatives of the Vieillot's Weaver that you can see in Virunga National Park (genus Ploceus, Typical Weavers) are Village Weaver (about 20%), Baglafecht Weaver (about 20%) and Black-headed Weaver (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Vieillot's Weaver is recorded against all the birds logged in Virunga National Park (62 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
